06085 -- U.S. ZIP code Municipality (1990): UNIONVILLE, Connecticut All ZIPs for this municipality (1990): 06085 Population (2000): 7054 Housing Units (2000): 2690 Land area (2000): 4.406507 sq. miles (11.412800 sq. km) Water area (2000): 0.177875 sq. miles (0.460694 sq. km) Total area (2000): 4.584382 sq. miles (11.873494 sq. km) Located within: Connecticut (CT) Location: 41.749832 N, 72.889809 W